This was posted on reddit probably a year or so ago and think he was just messing around with his guitar, no specific song. HERE is the original video with the chords of the guitar in the description or below...

Yep, you're correct but only for the first measure. 1 8th too many, but it's not being displayed as incorrect in GuitarPro/TuxGuitar because the cursor is still in there. Same reason the last measure isn't displayed as wrong despite only having a 4th in there.